Preliminary photon positioning results with cross strip anode readout by the GRAPH ASIC

Nicholas J. Nell; Oswald Siegmund; Jason McPhate; Travis Curtis; Andrej Seljak; Luca Macchiarulo; Kahiwa Hoe; Isar Mostafanezhad; John Vallerga; Rick Raffanti

doi:10.1117/12.3020340

28 August 2024 Preliminary photon positioning results with cross strip anode readout by the GRAPH ASIC

Nicholas J. Nell, Oswald Siegmund, Jason McPhate, Travis Curtis, Andrej Seljak, Luca Macchiarulo, Kahiwa Hoe, Isar Mostafanezhad, John Vallerga, Rick Raffanti

Author Affiliations +

Proceedings Volume PC13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; PC1310313 (2024) https://doi.org/10.1117/12.3020340
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Microchannel plate (MCP) detectors have been used on many ultraviolet (UV) space based observatories. Future NASA missions would benefit from scaled designs with larger areas, higher spatial resolution, and high counting rate capability. These prospects are being successfully demonstrated with cross strip (XS) anode readouts, but the electronics that read out such detectors would require reduction in size, weight, and power. The GRAPH ASIC was developed as an efficient high bandwidth solution to read out cross strip anodes for MCP detectors. First generation GRAPH ASICs have been wire bonded to circuit boards and initial testing and characterization have been done. Firmware and software have been implemented to process XS anode events producing X-Y photon positions. To further test and characterize performance of the GRAPH ASIC a GRAPH board is being used to read out photon events from an MCP detector with a cross strip anode. We present preliminary results on GRAPH design and operation. In addition we demonstrate photon detection with position and pulse height analysis and a description of the firmware currently being used to carry out these tests.

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Nicholas J. Nell, Oswald Siegmund, Jason McPhate, Travis Curtis, Andrej Seljak, Luca Macchiarulo, Kahiwa Hoe, Isar Mostafanezhad, John Vallerga, and Rick Raffanti "Preliminary photon positioning results with cross strip anode readout by the GRAPH ASIC", Proc. SPIE PC13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, PC1310313 (28 August 2024); https://doi.org/10.1117/12.3020340

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